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powerpc/64s/hash: provide arch_setup_exec hooks for hash slice setup

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This will be used by the SLB code in the next patch, but for now this
sets the slb_addr_limit to the correct size for 32-bit tasks.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2018-09-15 01:30:55 +10:00 • committed by Michael Ellerman
parent e83cbf7fb7
commit 2e1626744e
6 changed files with 37 additions and 0 deletions
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9
arch/powerpc/kernel/process.c
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@ -1482,6 +1482,15 @@ void flush_thread(void)
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
}
#ifdef CONFIG_PPC_BOOK3S_64
void arch_setup_new_exec(void)
{
if (radix_enabled())
return;
hash__setup_new_exec();
}
#endif
int set_thread_uses_vas(void)
{
#ifdef CONFIG_PPC_BOOK3S_64